diff --git a/README.md b/README.md
index 9bbd0fb..bc48589 100644
--- a/README.md
+++ b/README.md
@@ -2,6 +2,8 @@
 
 ⚠️: This was a hackathon project and is not recommended for production deployments or in sensitive environments.
 
+This does not work for Coder v1.21+. Specify a --version flag
+
 ---
 
 Launch [Coder](https://coder.com) in a simple way. It can:
@@ -13,7 +15,7 @@ Preferred environment: Google Cloud Shell. It just works.
 
 ## How to use
 
-No need to install:
+No need to install the CLI tool locally, run from NPM:
 
 ```sh
 # For a guided install: